Your still is a clone of this one

https://www.amazon.com/WMN_TRULYSTEP-Distiller-Moonshine-Alcohol-Stainless/dp/B00XZ381F0/

This still has many reviews and ratings and they seem to be fairly high.

As for building one, it is not that easy or cheap. And you will not be able to heat a keg on your kitchen stove.